You are using the backup scheduler in Enterprise Manager (EM) to schedule a backup of your
database. Which type of script does the backup scheduler generate?
A.
SQL script
B.
PL/SQL script
C.
Operating System (OS) script
D.
Enterprise Manager (EM) script
E.
Recovery Manager (RMAN) script
With the Enterprise Manager approach, you can set up and schedule database backups without writing any script. Enterprise Manager will create the RMAN script and schedule it
http://www.oracle.com/technetwork/articles/oem/havewala-rman-em12c-2104270.html